نتایج جستجو برای: srm

تعداد نتایج: 2425  

2012
Debra L. Kaiser

This Standard Reference Material (SRM) consists of a sintered alumina disc intended for use in calibration of X-ray powder diffraction equipment with respect to line position and intensity as a function of 2 angle. The solid form of the SRM eliminates any variability in intensity measurements introduced by the sample loading procedure. A unit of SRM 1976b consists of a sintered alumina disc ap...

Journal: :Analytical and bioanalytical chemistry 2013
Michele M Schantz Gauthier Eppe Jean-François Focant Coreen Hamilton N Alan Heckert Rebecca M Heltsley Dale Hoover Jennifer M Keller Stefan D Leigh Donald G Patterson Adam L Pintar Katherine E Sharpless Andreas Sjödin Wayman E Turner Stacy S Vander Pol Stephen A Wise

Four new Standard Reference Materials (SRMs) have been developed to assist in the quality assurance of chemical contaminant measurements required for human biomonitoring studies, SRM 1953 Organic Contaminants in Non-Fortified Human Milk, SRM 1954 Organic Contaminants in Fortified Human Milk, SRM 1957 Organic Contaminants in Non-Fortified Human Serum, and SRM 1958 Organic Contaminants in Fortifi...

2004
Horacio Vasquez Joey K. Parker

A new simplified mathematical model for a switched reluctance motor (SRM) driving a centrifugal pump was developed and experimentally validated. The simplified mathematical model was suitable to simulate the performance of the SRM–pump system and to design its controller. The new simplified model was determined based on the assumption that the SRM phase inductance profiles have triangular wavef...

2011
A M Mercer J D Sharp

We report the results of the first large-scale international survey of public perception of geoengineering and solar radiation management (SRM). Our sample of 3105 individuals in the United States, Canada and the United Kingdom was recruited by survey firms that administer internet surveys to nationally representative population samples. Measured familiarity was higher than expected, with 8% an...

Journal: :Journal of proteomics 2011
Chan-Kyung J Cho Andrei P Drabovich Ihor Batruch Eleftherios P Diamandis

Prenatal screening test for Down syndrome (DS) can be improved by discovery of novel biomarkers. A multiplex selected reaction monitoring (SRM) assay was developed to test previously identified thirteen candidate proteins in amniotic fluid (AF). One unique peptide was selected for each protein based on discovery data, while three MS/MS transitions were selected based on intelligent SRM results....

2012
Shohei Omokawa Toshihiko Imaeda Takuya Sawaizumi Toshimitsu Momose Hiroyuki Gotani Yukio Abe Hisao Moritomo Fuminori Kanaya

BACKGROUND We evaluated the responsiveness of patient-derived questionnaires and physical findings in evaluating recovery after treatment of ulnocarpal abutment syndrome. METHODS Patients were assessed at their initial visit to our clinic and again 3 months after the treatment. At each visit, patients completed a Short Form-36, the Japanese Society for Surgery of the Hand version of Disabilit...

2005
G. W. Mulholland

The uncertainties of the mean diameters of the nominal 1.0 µm SRM(®) 1690 polystyrene spheres and of the nominal 0.3 µm SRM(®) 1691 polystyrene spheres are recomputed using the current NIST Guidelines for computing uncertainty. The revised expanded uncertainty (approximately 95 % confidence level) for SRM(®) 1690 polystyrene spheres is equal to 0.005 µm compared to previous value of 0.008 µm. T...

2007
Giorgio Corani

Statistically distinguishing density-dependent from density-independent populations and selecting the best demographic model for a given population are problems of primary importance. Traditional approaches are PBLR (parametric bootstrapping of likelihood ratios) and Information Criteria (IC), such as the Schwarz Information Criterion (SIC), the Akaike Information Criterion (AIC) or the Final P...

2017
Aude Picard Amy Gartman David R. Clarke Peter R. Girguis

Sedimentary iron sulfide minerals play a key role in maintaining the oxygenation of Earth’s atmosphere over geological timescales; they also record critical geochemical information that can be used to reconstruct paleo-environments. On modern Earth, sedimentary iron sulfide mineral formation takes places in low-temperature environments and requires the production of free sulfide by sulfate-redu...

2004
T. Perelmutov D. Petravick

Storage Resource Managers (SRMs) are middleware components whose function is to provide dynamic space allocation and file management on shared storage components on the Grid[1,2]. SRMs support protocol negotiation and reliable replication mechanism. The SRM standard supports independent SRM implementations, allowing for a uniform access to heterogeneous storage elements. SRMs allow site-specifi...

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